Well, besides the fact that this is probably a repost... I gotta just say... are you going to get the same results when you mix/match? Take, as an example, Axl and Slash... both good, but together and not pissed off... Unstoppable.
That being said... I think I will have to say:

Jon Bonham-Drums (good call, Kozzy)
Dimebag and Randy Rhoads-Guitar (I'm a believer in 2 guitarists, and I think these 2 would really play off of each other.) I can use dead guys, can't I? This is fantasy.
Steve Harris-Bass (I'm just partial to this guys style)
Ozzy-Vocals (of course, since I am using Randy Rhoads, I think the choice is obvious.)

Those choices would of course change daily, but thats my current idea.